123030134045131 has 4 divisors (see below), whose sum is σ = 124118896293432. Its totient is φ = 121941371796832.

The previous prime is 123030134045087. The next prime is 123030134045177. The reversal of 123030134045131 is 131540431030321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 123030134045131 - 2⁷ = 123030134045003 is a prime.

It is a super-2 number, since 2×123030134045131² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123030134045093 and 123030134045102.

It is not an unprimeable number, because it can be changed into a prime (123030134045191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 544381123981 + ... + 544381124206.

It is an arithmetic number, because the mean of its divisors is an integer number (31029724073358).

Almost surely, 2^{123030134045131} is an apocalyptic number.

123030134045131 is a deficient number, since it is larger than the sum of its proper divisors (1088762248301).

123030134045131 is a wasteful number, since it uses less digits than its factorization.

123030134045131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1088762248300.

The product of its (nonzero) digits is 12960, while the sum is 31.

Adding to 123030134045131 its reverse (131540431030321), we get a palindrome (254570565075452).

The spelling of 123030134045131 in words is "one hundred twenty-three trillion, thirty billion, one hundred thirty-four million, forty-five thousand, one hundred thirty-one".